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Greenhouse Glazing, 4mm Twinwall Polycarbonate

Greenhouse Glazing, 4mm Twinwall Polycarbonate


Twin wall polycarbonate is virtually unbreakable and easy to handle, so its safe for the whole family. Its also easy to cut with a Stanley knife which makes it ideal for replacement glazing. It provides good insulation from frost and maintains a more even temperature for better plant growth. Twin wall polycarbonate also diffuses light to prevent scorching. With good light transmission properties it is no surprise that this versatile glazing material is so popular in greenhouse glazing.

Prices fixed until Wednesday 28th January.

Detailed information:

Product Specifications
  • Virtually unbreakable
  • Good insulation from frost
  • Maintains a more even temperature than glass
  • Diffuses light to prevent scorching
  • High light transmission properties
  • Easily cut to any shape or size with a Stanley knife
  • Easily fitted with standard greenhouse glazing clips
  • Easily overlapped at joins with standard greenhouse overlap clips
  • Existing clips and gaskets can be reused


Twin wall polycarbonate glazing is far stronger than the flimsy single skin polycarbonate sheeting supplied with some greenhouses. Twin wall polycarbonate is often used in conservatory roof glazing because it is a stable and long lasting glazing material which does not significantly alter with the passage of time.

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